JP2003092767A5 - - Google Patents
Download PDFInfo
- Publication number
- JP2003092767A5 JP2003092767A5 JP2002198178A JP2002198178A JP2003092767A5 JP 2003092767 A5 JP2003092767 A5 JP 2003092767A5 JP 2002198178 A JP2002198178 A JP 2002198178A JP 2002198178 A JP2002198178 A JP 2002198178A JP 2003092767 A5 JP2003092767 A5 JP 2003092767A5
- Authority
- JP
- Japan
- Prior art keywords
- signal
- color difference
- reference value
- field
- processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Description
【００２２】
【課題を解決するための手段】
本発明の映像信号判別装置は、上下のラインで同一値の画素を含んで構成された色差信号を１フィールド分だけ遅延する遅延手段と、この色差信号と、遅延手段により１フィールド分だけ遅延された色差信号との差を演算する演算手段と、演算手段により演算された差を1フィールド分累積して加算する加算手段と、加算手段により加算して得られた信号を所定の基準値と比較し、信号が基準値より大きい場合１を出力し、基準値より小さい場合０を出力する比較手段と、比較手段により得られた符号を順番に複数フィールド並べた符号列に基づいて、フィルム映像信号であるか否かを判定する判定手段とを備えることを特徴とする。このような構成によって、オッドフィールドとイーブンフィールドの画像の相関性に影響されることなく、フィルム映像信号かどうかを正確に検出できる。[0022]
[Means for Solving the Problems]
The video signal discrimination apparatus of the present invention is delayed by one field by the delay means which delays the color difference signal constituted by including pixels of the same value in the upper and lower lines by one field, the color difference signal, and the delay means. Calculating means for calculating the difference from the chrominance signal, adding means for accumulating and adding the difference calculated by the calculating means for one field, and comparing the signal obtained by adding the adding means with a predetermined reference value And a comparison means for outputting 1 when the signal is larger than the reference value and outputting 0 when the signal is smaller than the reference value, and a film video signal based on a code string in which a plurality of fields of codes obtained by the comparison means are arranged in order. And determining means for determining whether or not Such a configuration makes it possible to accurately detect whether a film video signal is or not, without being affected by the correlation between the odd field and even field images.
【００２４】
本発明の映像信号判別方法は、色差信号を１フィールド分だけ遅延する遅延ステップと、この色差信号と、遅延ステップの処理により１フィールド分だけ遅延された色差信号との差を演算する演算ステップと、演算ステップの処理により演算された差を１フィールド分累積して加算する加算ステップと、加算ステップの処理により加算して得られた信号を所定の基準値と比較し、信号が基準値より大きい場合１を出力し、基準値より小さい場合０を出力する比較ステップと、比較ステップの処理により得られた符号を順番に複数フィールド並べた符号列に基づいて、フィルム映像信号であるか否かを判定する判定ステップとを含むことを特徴とする。[0024]
The video signal discrimination method of the present invention comprises a delay step of delaying a color difference signal by one field, and an operation step of calculating a difference between this color difference signal and a color difference signal delayed by one field by the processing of the delay step. A signal obtained by adding the difference calculated by the processing of the calculation step and adding it by accumulating the field for one field and adding the result of the processing of the addition step is compared with a predetermined reference value, and the signal is larger than the reference value A comparison step of outputting case 1 and outputting 0 when smaller than the reference value, and whether it is a film video signal based on a code string in which a plurality of fields of codes obtained by the processing of the comparison step are arranged in order And a determination step.
【００２５】
本発明の記録媒体のプログラムは、色差信号を１フィールド分だけ遅延する遅延ステップと、この色差信号と、遅延ステップの処理により１フィールド分だけ遅延された色差信号との差を演算する演算ステップと、演算ステップの処理により演算された差を1フィールド分累積して加算する加算ステップと、加算ステップの処理により加算して得られた信号を所定の基準値と比較し、信号が基準値より大きい場合１を出力し、基準値より小さい場合０を出力する比較ステップと、比較ステップの処理により得られた符号を順番に複数フィールド並べた符号列に基づいて、フィルム映像信号であるか否かを判定する判定ステップとを含むことを特徴とする。[0025]
The program of the recording medium of the present invention comprises a delay step of delaying the color difference signal by one field, and an operation step of calculating the difference between this color difference signal and the color difference signal delayed by one field by the processing of the delay step. A signal obtained by adding the difference calculated by the processing of the calculation step and adding it by accumulating the field for one field and adding the result of the processing of the addition step is compared with a predetermined reference value, and the signal is larger than the reference value A comparison step of outputting case 1 and outputting 0 when smaller than the reference value, and whether it is a film video signal based on a code string in which a plurality of fields of codes obtained by the processing of the comparison step are arranged in order And a determination step.
【００２６】
本発明のプログラムは、色差信号を１フィールド分だけ遅延する遅延ステップと、色差信号と、遅延ステップの処理により１フィールド分だけ遅延された色差信号との差を演算する演算ステップと、演算ステップの処理により演算された差を1フィールド分累積して加算する加算ステップと、加算ステップの処理により加算して得られた信号を所定の基準値と比較し、信号が基準値より大きい場合１を出力し、基準値より小さい場合０を出力する比較ステップと、比較ステップの処理により得られた符号を順番に複数フィールド並べた符号列に基づいて、フィルム映像信号であるか否かを判定する判定ステップとをコンピュータに実行させる。[0026]
The program according to the present invention comprises a delay step of delaying a color difference signal by one field, an operation step of calculating a difference between the color difference signal and a color difference signal delayed by one field by the processing of the delay step; The signal obtained by adding the difference calculated by the processing and adding it by 1 field of accumulation and the adding step is compared with a predetermined reference value, and 1 is output if the signal is larger than the reference value And a comparison step of outputting 0 if smaller than the reference value, and a determination step of determining whether it is a film video signal based on a code string in which a plurality of fields of codes obtained by the processing of the comparison step are arranged in order. And make the computer execute.
Claims (8)
前記色差信号と、前記遅延手段により１フィールド分だけ遅延された前記色差信号との差を演算する演算手段と、
前記演算手段により演算された前記差を1フィールド分累積して加算する加算手段と、
前記加算手段により加算して得られた信号を所定の基準値と比較し、前記信号が前記基準値より大きい場合１を出力し、前記基準値より小さい場合０を出力する比較手段と、
前記比較手段により得られた符号を順番に複数フィールド並べた符号列に基づいて、フィルム映像信号であるか否かを判定する判定手段と
を備えることを特徴とする映像信号判別装置。Delay means for delaying by at least one field the color difference signal configured to include at least an odd-numbered scan line and an even-numbered scan line and pixels having the same value ;
Calculating means for calculating a difference between the color difference signal and the color difference signal delayed by one field by the delay means;
Addition means for accumulating and adding one field by the difference calculated by the calculation means;
Comparing means for comparing the signal obtained by the addition by the adding means with a predetermined reference value , outputting 1 when the signal is larger than the reference value, and outputting 0 when the signal is smaller than the reference value;
A video signal discriminating apparatus comprising: a judging unit which judges whether or not the film is a film video signal based on a code string in which a plurality of fields of codes obtained by the comparing unit are arranged in order .
ことを特徴とする請求項１に記載の映像信号判別装置。The video signal discrimination device according to claim 1, wherein the color difference signal is one of color difference signals compressed to 4: 2: 0 format.
前記色差信号と、前記遅延ステップの処理により１フィールド分だけ遅延された前記色差信号との差を演算する演算ステップと、
前記演算ステップの処理により演算された前記差を1フィールド分累積して加算する加算ステップと、
前記加算ステップの処理により加算して得られた信号を所定の基準値と比較し、前記信号が前記基準値より大きい場合１を出力し、前記基準値より小さい場合０を出力する比較ステップと、
前記比較ステップの処理により得られた符号を順番に複数フィールド並べた符号列に基づいて、フィルム映像信号であるか否かを判定する判定ステップと
を含むことを特徴とする映像信号判別方法。A delay step of delaying at least a color difference signal including pixels of the same value in the odd scan line and the even scan line by one field;
Calculating the difference between the color difference signal and the color difference signal delayed by one field by the processing of the delay step;
An addition step of accumulating and adding one field of the difference calculated by the process of the calculation step;
Comparing the signal obtained by adding in the processing of the adding step with a predetermined reference value , outputting 1 when the signal is larger than the reference value, and outputting 0 when the signal is smaller than the reference value;
And a determination step of determining whether or not it is a film video signal based on a code string in which a plurality of fields of codes obtained by the processing of the comparison step are arranged in order .
ことを特徴とする請求項３に記載の映像信号判別方法。4. The method according to claim 3, wherein the color difference signal is one of color difference signals compressed to 4: 2: 0 format.
前記色差信号と、前記遅延ステップの処理により１フィールド分だけ遅延された前記色差信号との差を演算する演算ステップと、
前記演算ステップの処理により演算された前記差を1フィールド分累積して加算する加算ステップと、
前記加算ステップの処理により加算して得られた信号を所定の基準値と比較し、前記信号が前記基準値より大きい場合１を出力し、前記基準値より小さい場合０を出力する比較ステップと、
前記比較ステップの処理により得られた符号を順番に複数フィールド並べた符号列に基づいて、フィルム映像信号であるか否かを判定する判定ステップと
を含むことを特徴とするコンピュータが読み取り可能なプログラムが記録されている記録媒体。A delay step of delaying at least a color difference signal including pixels of the same value in the odd scan line and the even scan line by one field;
Calculating the difference between the color difference signal and the color difference signal delayed by one field by the processing of the delay step;
An addition step of accumulating and adding one field of the difference calculated by the process of the calculation step;
Comparing the signal obtained by adding in the processing of the adding step with a predetermined reference value , outputting 1 when the signal is larger than the reference value, and outputting 0 when the signal is smaller than the reference value;
A computer readable program comprising: a determination step of determining whether or not a film video signal is based on a code string in which a plurality of fields of codes obtained by the processing of the comparison step are arranged in order; The recording medium on which is recorded.
ことを特徴とする請求項５に記載の記録媒体。The recording medium according to claim 5, wherein the color difference signal is one of color difference signals compressed to 4: 2: 0 format.
前記色差信号と、前記第１の遅延ステップの処理により１フィールド分だけ遅延された前記色差信号との差を演算する演算ステップと、
前記演算ステップの処理により演算された前記差を1フィールド分累積して加算する加算ステップと、
前記加算ステップの処理により加算して得られた信号を所定の基準値と比較し、前記信号が前記基準値より大きい場合１を出力し、前記基準値より小さい場合０を出力する比較ステップと、
前記比較ステップの処理により得られた符号を順番に複数フィールド並べた符号列に基づいて、フィルム映像信号であるか否かを判定する判定ステップと
をコンピュータに実行させるプログラム。At least a first delay step of delaying a color difference signal including pixels of the same value in odd and even scan lines by one field;
Calculating the difference between the color difference signal and the color difference signal delayed by one field by the processing of the first delay step;
An addition step of accumulating and adding one field of the difference calculated by the process of the calculation step;
Comparing the signal obtained by adding in the processing of the adding step with a predetermined reference value , outputting 1 when the signal is larger than the reference value, and outputting 0 when the signal is smaller than the reference value;
A program for causing a computer to execute a determination step of determining whether or not a film video signal is based on a code string in which a plurality of fields of codes obtained by the processing of the comparison step are arranged in order.
ことを特徴とする請求項７に記載のプログラム。The program according to claim 7, wherein the color difference signal is one of color difference signals compressed to 4: 2: 0 format.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002198178A JP3674607B2 (en) | 2001-07-10 | 2002-07-08 | Video signal discriminating apparatus and method, recording medium, and program |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001208670 | 2001-07-10 | ||
| JP2001-208670 | 2001-07-10 | ||
| JP2002198178A JP3674607B2 (en) | 2001-07-10 | 2002-07-08 | Video signal discriminating apparatus and method, recording medium, and program |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2003092767A JP2003092767A (en) | 2003-03-28 |
| JP2003092767A5 true JP2003092767A5 (en) | 2004-09-09 |
| JP3674607B2 JP3674607B2 (en) | 2005-07-20 |
Family
ID=26618408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002198178A Expired - Fee Related JP3674607B2 (en) | 2001-07-10 | 2002-07-08 | Video signal discriminating apparatus and method, recording medium, and program |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3674607B2 (en) |
-
2002
- 2002-07-08 JP JP2002198178A patent/JP3674607B2/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9031134B2 (en) | System for detecting sequences of frozen frame in baseband digital video | |
| US7502513B2 (en) | Commercial detector with a start of active video detector | |
| US8330858B2 (en) | Pull-down detection apparatus and pull-down detection method | |
| JP5126941B2 (en) | Escalator monitoring device, escalator monitoring method, escalator system and program | |
| US7999876B2 (en) | Pull-down detection apparatus and pull-down detection method | |
| JPH0787481A (en) | Fault detector | |
| US6968074B1 (en) | Image processing device, image processing method, and storage medium | |
| EP1480170A1 (en) | Method and apparatus for processing images | |
| US20060187301A1 (en) | Pull-down detection apparatus and pull-down detection method | |
| JP4375452B2 (en) | Image processing apparatus, image processing method, program, and display apparatus | |
| US6668070B2 (en) | Image processing device, image processing method, and storage medium | |
| JP2003092767A5 (en) | ||
| JP2008028475A (en) | Image processor, image processing program, recording medium recording image processing program, image processing method | |
| JP3692963B2 (en) | Video source discrimination method and apparatus, and video signal processing apparatus | |
| JP2007257078A (en) | Image retrieving device | |
| KR100351160B1 (en) | Apparatus and method for compensating video motions | |
| JP2006303910A (en) | Film mode detecting apparatus | |
| KR100898133B1 (en) | Video signal judgment apparatus and method | |
| JP2000242795A (en) | Device and method for detecting picture difference and recording medium where same method is recorded | |
| JPH0750815A (en) | Travel correction picture processing method | |
| JP2002330408A (en) | Video signal processing unit | |
| JP4241021B2 (en) | Motion vector detection method, motion vector detection device, and image encoding device | |
| EP2973216B1 (en) | System and method of detecting a strobe using a temporal window | |
| JPH0779431A (en) | Scene change detection circuit for digital picture signal | |
| JP2779624B2 (en) | Stoppage vehicle detection method |